20859804

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:160

約数の個数: 144

約数和(自身を含む): 64995840

約数和(自身を除く): 44136036

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 59, 61, 63, 69, 84, 92, 118, 122, 126, 138, 161, 177, 183, 207, 236, 244, 252, 276, 322, 354, 366, 413, 414, 427, 483, 531, 549, 644, 708, 732, 826, 828, 854, 966, 1062, 1098, 1239, 1281, 1357, 1403, 1449, 1652, 1708, 1932, 2124, 2196, 2478, 2562, 2714, 2806, 2898, 3599, 3717, 3843, 4071, 4209, 4956, 5124, 5428, 5612, 5796, 7198, 7434, 7686, 8142, 8418, 9499, 9821, 10797, 12213, 12627, 14396, 14868, 15372, 16284, 16836, 18998, 19642, 21594, 24426, 25193, 25254, 28497, 29463, 32391, 37996, 39284, 43188, 48852, 50386, 50508, 56994, 58926, 64782, 75579, 82777, 85491, 88389, 100772, 113988, 117852, 129564, 151158, 165554, 170982, 176778, 226737, 248331, 302316, 331108, 341964, 353556, 453474, 496662, 579439, 744993, 906948, 993324, 1158878, 1489986, 1738317, 2317756, 2979972, 3476634, 5214951, 6953268, 10429902, 20859804]

約数ペア:

[(1, 20859804), (2, 10429902), (3, 6953268), (4, 5214951), (6, 3476634), (7, 2979972), (9, 2317756), (12, 1738317), (14, 1489986), (18, 1158878), (21, 993324), (23, 906948), (28, 744993), (36, 579439), (42, 496662), (46, 453474), (59, 353556), (61, 341964), (63, 331108), (69, 302316), (84, 248331), (92, 226737), (118, 176778), (122, 170982), (126, 165554), (138, 151158), (161, 129564), (177, 117852), (183, 113988), (207, 100772), (236, 88389), (244, 85491), (252, 82777), (276, 75579), (322, 64782), (354, 58926), (366, 56994), (413, 50508), (414, 50386), (427, 48852), (483, 43188), (531, 39284), (549, 37996), (644, 32391), (708, 29463), (732, 28497), (826, 25254), (828, 25193), (854, 24426), (966, 21594), (1062, 19642), (1098, 18998), (1239, 16836), (1281, 16284), (1357, 15372), (1403, 14868), (1449, 14396), (1652, 12627), (1708, 12213), (1932, 10797), (2124, 9821), (2196, 9499), (2478, 8418), (2562, 8142), (2714, 7686), (2806, 7434), (2898, 7198), (3599, 5796), (3717, 5612), (3843, 5428), (4071, 5124), (4209, 4956)]